Finding the Fourth Proportional to 10,091.28, 15,137.42 and 3,850.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.28 : 15,137.42 = 3,850.12 : x
2. Step 2: Convert to fraction form
   10,091.28/15,137.42 = 3,850.12/x
3. Step 3: Cross multiply
   10,091.28x = 15,137.42 × 3,850.12
4. Step 4: Simplify right side
   10,091.28x = 58,280,883.49
5. Step 5: Solve for x
   x = 58,280,883.49/10,091.28
6. Step 6: Final answer
   x = 5,775.37